(1991). Metode pengujian berat jenis semen portland. Yayasan Badan Pekerjaan Umum.
Chicago Style (17th ed.) CitationMetode Pengujian Berat Jenis Semen Portland. Yayasan Badan Pekerjaan Umum, 1991.
MLA (8th ed.) CitationMetode Pengujian Berat Jenis Semen Portland. Yayasan Badan Pekerjaan Umum, 1991.
Warning: These citations may not always be 100% accurate.